C.S. Lewis on when to pluck out your eye

 C.S. Lewis on one subtle danger in doing a good thing, a thing that we may love and even be called to do:

"...we may come to love knowledge - our knowing - more than the thing known: to delight not in the exercise of our talents but in the fact that they are ours, or even in the reputation they bring us.  Every success in the scholar's life increases this danger.  If it becomes irresistible, he must give up his scholarly work.  The time for plucking out the right eye has arrived."

Citation: Lewis, C.S. The Weight of Glory. HarperCollins Publishers. San Francisco. 2001. Page 57.